Hydrocarbon-burner.



G. L. ELROD.

HYDROCARBON BURNER.

APPLICATION FILED OCT. 28. I916. v 1 ,238,395, Patented Aug. 28, 1917.

2 SHEETSSHEET I.

Kemerl e eZ Zfo d G. L. ELROD. HYDROCARBON BURNER. APPLICATION man OCT. 28. x9165,

Patented Aug. 28, 1917.

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I I I UNITED STATES PATENT ()FFIGE.

GENERAL LEE ELROD, or JONESBORO, AnKANSAs, ASSIGNOR or oNE-HALE T0,

WILLIAM WHITE JACKSON, JR, or JONESIBORO, ARKANSAS.

HYDROCARBON-BURNER.

Specification of Letters Patent.

Patented Aug. 28, 1917.

Application filed October 28, 1916. Serial No. 128,274.

To all whom it may concern:

Be it knownthat I, GENERAL LEE ELROD, a citizen of the United States, residing at Jonesboro, in the county of Graighead and State of Arkansas, have invented certain new and useful Improvements in Hydrocarbon-Burners, of which the following is a specification.

This invention relates to hydrocarbon burners and has for its object the provision of a simple and efficient device whereby coal oil. gasolene, or other volatile fuel may be utilized effectually for heating purposes. One object of the invention is to provide an apparatus in which the generating chamber is readily accessible for cleaning or repairing and a. further object of the invention is to provide novel means for effecting initial combustion. A still further object of the invention is to provide a novel form of burner proper, and a still further object is to provide a novel construction whereby an ample supply of air is furnished.

The several stated objects and other inci dental objects which will appear as the description of the invention proceeds, are attained in an apparatus of the type illustrated in the accompanying drawings and which will be hereinafter fully described. The novel features of the invention will be particularly pointed out in the claims following the description.

In the annexed drawings:

Figure 1 is a perspective view of my improved apparatus, the generating chamber or casing being shown in open position.

Fig. 2 is a vertical transverse section of the apparatus;

Fig. 3 is a detail section taken longitudinally through the air inlet;

Fig. d is a detail perspective View of the frame or support for the generating chamber or casing;

Fig. 5 is a bottom plan view of the burner ring.

In carrying out my invention, the fuel supply pipe 1 is led from any convenient source of supply to a coupling 2 having a packing box 3 provided on its lower end and constructed in its upper portion with an external annular shoulder 4:- This coupling 2 will be supported in any convenient manner and is illustrated as provided with a tripod or plurality of legs 5 which may rest upon a table or other fixed support. Fitting around the upper portion of the coupling 2 and resting on the annular shoulder a is a collar 6 which may be secured against movement about the coupling by a set screw 7, as will be readily understood. To the said collar, I rigidly secure by brazing or other convenient or preferred means the U-shaped frame or bracing support 8 which rises from the collar to the desired height and fits closely against the inner walls of the casing 9. This casing 9 is constructed in two similar members hinged together, as shown at 10, and provided at the side opposite the hinges with a latch 11 whereby the accidental opening of the casing or separation of the members will be prevented. One member of the casing is secured rigidly to the collar 6 and the frame 8 so that the casing will be supported by the collar and said frame, the lower ends or bottom of the casing being notched, as shown at 12, whereby to fit around the collar, as will be readily understood. Openings 13 are provided in the upper and lower ends of the casing to permit a circulation of air therethrough and thereby prevent overheating and burning out of the generating tube and also to keep down the temperature of the casing so that accidental burning of an operator near the apparatus will be avoided. In the upper end of the casing, is provided a central opening which receives a nipple 11 on the upper end of a generating tube 15 which has its lower end secured in the upper end of the coupling 2 by screwthreads or otherwise so that it may be readily removed when cleaning of the apparatus is necessary. The nipple 1d is constructed with a diaphragm 16 extending entirely across its bore and having a central perforation which is adapted to be engaged by the needle valve 17 mounted in the coupling 2 and extending through the packing box 3, the said coupling, and the generating tube, as shown in Fig. 2, the lower extremity of the needle valve being equipped with a handle 18 of any preferred form whereby the valve may be adjusted. It will be readily understood that when the valve is raised so that its upper extremity or point fills the perforation in the frame 16, the flow of fuel will be prevented and that by withdrawing the valve more or less from the perforation the flow of fuel will be permitted and of fectually regulated.

Across the upper end of the casing is an open ended tube 19 which constitutes an air inlet and is provided in its under side with an openin 20 immediately over the nipple lat and adapted to receive the upper end of said nipple. This air inlet tube 19 may be formed integral with or secured rigidly to one member of the casing 9 and from its upper side, in axial alinement with the generating tube 15, rises a mixing tube 21 which is disposed within the burner ring and terminates short of the top thereof. Upon the upper side of the air inlet tube and concentric with the mixing tube 21, is a pan or burner ring seat having an annular rim 23, as shown. This pan or burner ring seat is secured rigidly upon the upper side of the air inlet tube and at one side of said tube is a gas tube or burner 2% which de pends from the pan through the top of the casing 9, as clearly shown in the drawings,

the lower portion of this burner being bent toward the generating tube 15 and then carried downwardly close to the said tube. The lower end of the tube 2% is closed, as shown at 25, while perforations 26 are formed in the wall of said tube or burner facing the generating tube 15.

The burner proper consists of an outer ring or cap 27 having a closed upper end and provided in its peripheral wall with a plurality of slots or openings 28, the lower end or edge of the said cap or ring being adapted to fit snugly within the rim of the pan or burner 22. Disposed concentrio with the cap or ring 27 and spaced therefrom is an inner ring 29, the lower edge of said inner ring being spaced from the burner seat while the upper edge of said inner ring is placed against the upper closed end of the outer ring or cap. In the present drawings, the inner ring 29 is shown as carried by the upper closed end of the outer ring or cap and I prefer to form the two rings as an integral structure, but it will be understood that the inner ring may be supported in any other manner which will maintain it in spaced relation to the outer ring and against the top of the same and in spaced relation to the burner seat. a

It is thought the operation of my improved apparatus will be readily understood from the foregoing description, taken in connection with the accompanying drawings. When starting the operation, a small supply of fuel may be poured in the pan 22 so as to flow into the precombustion burner or ignition tube 2st and said fuel ignited at the perforations 26. The flame thereby created will play directly upon the generating tube 15 so that the same will be quickly raised in temperature and if the needle valve 17 be then opened and fuel permitted to flow through the supply pipe 1 and thegenerating tube, it will be vaporized before it passes through the diaphragm 16 and the opening 20. It is to be understood. however, that the initial heating of the generating tube 15 may be efiected in other ways, as by using fuel on an asbestos torch. As the vaporized fuel emerges through the opening 20, it will be commingled with the air flowing into the tube 19 through the two ends of the same and the air and vapor will rise through the mixing tube 21 and will be thoroughly commingled while flowing through said tube. The mixed air and vapor escaping from the mixing tube 21 will be deflected toward the lower edge and the peripheral wall of the inner burner ring 29 and will then rise between the two rings so as to escape through the narrow slots or openings 28 where it may be ignited and burned, as will be readily understood. It will be readily noted that the mixed vapor and air is retarded in its passage to and escape from the openings 28 so that when it does finally escape, it will be thoroughly mixed and in condition to be very readily burned. The heat given off from the burner rings, when the device is in use, will be intense so that the apparatus may be used for a variety of purposes, being especially adapted in a small size for use in heating coffee urns and in a larger size for heating boilers of pressing machines. The device is exceedingly simple in the construction and arrangement of its parts and may be very readily cleaned. By merely loosening the set screw 7 the casing and the supporting frame 8 may be lifted from the coupling 2 and, when so lifted, will carry with it the burner seat, together with the gas tube and the air inlet tube. The burner rings will preferably be somewhat resilient so that they will be friotionally retained upon the burner seat and may be easily lifted therefrom when it is necessary to clean the apparatus or supply new burner rings. It will be obvious that if the casing 9 and frame 8 be lifted from the coupling 2 and the members of the casing then swung apart, the entire generating chamber will be accessible so that thorough repairs may be easily made. It will also be noted that the generating tube 15 may be readily removed from its seat in the coupling 2 so that it may be readily cleaned.

Having thus described the invention, what is claimed as new is:

1. In an apparatus for the purpose set forth, the combination of a fuel supply member having an upturned end, a casing removably fitted on and supported by the upturned end of the fuel supply member and otherwise unsupported, a burner supported by the upper end of the casing, a generating tube seated upon the upturned end of the fuel supply member and rising therefrom through the casing and inclosed by the oasing, the upper end of the generating'tube being engaged by the casing whereby the tube will be held to the fuel supply member by the casing and the tube forming a direct communication between the fuel supply member and the burner, and means for regulating the flow of the fuel through said tube.

2. In an apparatus for the purpose set forth, the combination of a fuel supply member, a casing removably fitted on and supported by said member and otherwise unsupported, an air inlet tube secured across said casing, a burner secured on said air inlet tube and in communication therewith, and a generating tube seated on the fuel supply member and rising therefrom through the casing and in communication with the air inlet tube and through the same with the burner.

3. In an apparatus for the purpose set forth, the combination of a casing, a generating tube rising through the casing, an air inlet tube secured on the casing above and in communication with the generating tube, a mixing tube rising from the said air inlet tube in alinement with the generating tube, and a burner supported on the air inlet tube around the miXing tube.

4. In an apparatus for the purpose set forth, the combination of a casing, a generatlng tube within the casing, an air inlet tube secured upon the casing and having fitted to said seat and provided with openings in its peripheral wall.

5. In an apparatus for the purpose set forth, the combination of a casing, a generating tube within the casing, an air inlet secured upon the casing and having both ends open and in communication with the generating tube, a mixing tube rising from the air inlet tube in alinement with the generating tube, a burner seat on the said air inlet tube around the mixing tube, a burner ring fitted to said seat and having openings in its peripheral wall, and an inner ring arranged in s aced relation to the first-mentioned ring with its upper edge against the upper end of the said first-mentioned ring and its lower edge in spaced relation to the burner seat.

In testimony whereof I affix my signature.

GENERAL LEE ELROD. [L. s.]

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

